Internet of Vehicles system and method based on secret sharing and alliance chain

Abstract

The invention discloses an Internet of Vehicles system and method based on secret sharing and an alliance chain. The system comprises a vehicle-mounted unit arranged on a vehicle, and an alliance chain server and an alliance chain client which form an alliance chain, wherein the alliance chain server side comprises an Endorser, a Committer and an Order, and the Committer is connected with the Order. Vehicle registration, secret key card issuing and authentication requests are submitted to an alliance chain server through an alliance chain client, only private keys of the alliance chain serverand the client need to be stored in secret key cards of the clients, and needed information is stored in alliance chain data. According to the invention, the blockchain architecture is applied to theInternet of Vehicles; a server private key and a vehicle ID are respectively stored in an alliance chain service in a distributed manner in a secret sharing manner; a traditional centralized server for centrally mastering user information is omitted, the outside cannot completely obtain complete vehicle ID information and server private key information, the information of a vehicle owner is not prone to leakage, and the anti-attack performance of the Internet of Vehicles system is further enhanced.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to a system and method for the Internet of Vehicles based on secret sharing and alliance chains. Background technique [0002] Blockchain is a brand-new distributed infrastructure and computing paradigm. It uses an ordered chained data structure to store data, uses consensus algorithms to update data, and uses cryptography to ensure data security. In blockchain-based transactions, ensuring the data security of transactions and the privacy of customers is a necessary condition for the further development of blockchain. For this reason, cryptography technology, especially public key cryptography, has been widely used in blockchain. The alliance chain is a branch of the blockchain, so it is also a distributed and decentralized public database. The difference from other chains is that it is aimed at members of specific groups and limited third parties. A pre-selected ...

AI Technical Summary

Problems solved by technology

[0007] 1. If the OBU ID is made public, it may cause information leakage of the car owner

If the ID is recorded in multiple locations, ID tracking can be realized, which is a serious information leakage in some application scenarios

[0008] 2. Issue a symmetric key to the OBU. Since the symmetric key cannot be used for reliable digital signatures, it is not good for identification

[0009] 3. Issue an asymmetric key pair to the OBU, and use the private key to perform digital signatures. In this way, the identity or certificate needs to be disclosed when verifying the digital signature, resulting in the leakage of the owner's information

[0010] 4. The most important unit of the entire Internet of Vehicles system is TA. In case its stored information is stolen or attacked by DOS, it may cause serious consequences

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